Park, Ok-Kyung Kim, Woo Young Kim, Seung Min You, Nam-Ho Jeong, Youngjin Lee, Hun Su Ku, Bon-Cheol 2024-01-20T06:01:46Z 2024-01-20T06:01:46Z 2021-09-05 2015-10-01 0167-577X https://pubs.kist.re.kr/handle/201004/124907 The effect of atmospheric-pressure plasma treatment on the mechanical properties of carbon nanotube (CNT) fibers was investigated. When the CNT fibers were irradiated with RF atmospheric-pressure plasma, it was confirmed that functional groups such as hydroxyl or carboxylic acid groups were generated on the surface of the CNT fibers. The mechanical properties of CNT fibers were improved as a result of the plasma treatment because the functional groups on individual CNTs were able to induce hydrogen bonds between them. After plasma treatment with gas flow of argon (10 lpm) and oxygen (100 sccm), the tensile strength of the pure CNT fiber increased by approximately 40%, from 0.62 N/tex to 0.86 N/tex, and the modulus increased by approximately 20%, from 27.9 N/tex to 32.9 N/tex. (C) 2015 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV Effect of oxygen plasma treatment on the mechanical properties of carbon nanotube fibers Article 10.1016/j.matlet.2015.04.141 1 MATERIALS LETTERS, v.156, pp.17 - 20 MATERIALS LETTERS 156 17 20 scie scopus 000357550300005 2-s2.0-84929324087 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article Carbon nanotube fibers Plasma treatment Mechanical properties Hydrogen bonding